US2725792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for generating tapered gears
Assignee: Gleason Works
•
Filing: 1952-10-29
•
Granted: 1955-12-06
•
Expires: 1972-10-29
Abstract
No abstract record available.
Inventors
- 👤 Wildhaber Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:48
CPC Classifications
B; B23; B23F; B23F9/00; B23F9/08; B23F9/10; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/103816; Y10T409/104134; Y10T409/104452; Y10T409/104611
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2302004A
Cited
US2634657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |